sorry i was in a rush to get the problem fixed and i was tired.
when th 12 pin power is in, the heatsink fan spins fine.
when the 12pin and 4 pin are plugged in, the heatsink fan spins once.
So the problem occurs when the 4pin mobo power is in. which is needed so there is not much i can do. i have 2 power supply's that work and both have the same effect on this board.